|   | 
|  Kingdom Animalia | 
|   | 
Acanthistius fuscus Regan, 1913 – valid
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|   | 
Aequidens biseriatus (Regan, 1913) – valid
 | 
|   | 
Anampses pulcher Regan, 1913 – invalid
 | 
|   | 
Ancistrus centrolepis Regan, 1913 – valid
 | 
|   | 
Anotopterus vorax (Regan, 1913) – valid
 | 
|   | 
Apistogramma Regan, 1913 – valid
 | 
|   | 
Austrolycus Regan, 1913 – valid
 | 
|   | 
Austrolycus depressiceps Regan, 1913 – valid
 | 
|   | 
Bathystethus orientale Regan, 1913 – valid
 | 
|   | 
Batrochoglanis transmontanus (Regan, 1913) – valid
 | 
|   | 
Bovichtus angustifrons Regan, 1913 – valid
 | 
|   | 
Bovichtus chilensis Regan, 1913 – valid
 | 
|   | 
Brachyrhaphis Regan, 1913 – valid
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|   | 
Brycon oligolepis Regan, 1913 – valid
 | 
|   | 
Centrodraco Regan, 1913 – valid
 | 
|   | 
Chaenocephalus Regan, 1913 – valid
 | 
|   | 
Channichthys rugosus Regan, 1913 – valid
 | 
|   | 
Characidium rachovii Regan, 1913 – valid
 | 
|   | 
Chirolophius forbesii Regan, 1913 – invalid
 | 
|   | 
Corydoras macropterus Regan, 1913 – valid
 | 
|   | 
Coryphaenoides ferrieri (Regan, 1913) – valid
 | 
|   | 
Crenicichla notophthalmus Regan, 1913 – valid – two-spot pike cichlid, two-spot pike cichlid
 | 
|   | 
Crossostomus chilensis (Regan, 1913) – valid
 | 
|   | 
Cryodraco pappenheimi Regan, 1913 – valid
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|   | 
Gambusia caymanensis Regan, 1913 – valid
 | 
|   | 
Gambusia dominicensis Regan, 1913 – valid – domingo gambusia, domingo gambusia
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|   | 
Gambusia wrayi Regan, 1913 – valid – jamaica gambusia, Jamaica gambusia
 | 
|   | 
Hemiancistrus holostictus Regan, 1913 – valid
 | 
|   | 
Hyphessobrycon condotensis Regan, 1913 – valid
 | 
|   | 
Imparfinis spurrellii (Regan, 1913) – valid
 | 
|   | 
Jobertina rachovii (Regan, 1913) – invalid
 | 
|   | 
Labrichthys fuentesi Regan, 1913 – invalid
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|   | 
Leiocassis doriae Regan, 1913 – valid
 | 
|   | 
Lepidoperca coatsii (Regan, 1913) – valid
 | 
|   | 
Limia heterandria Regan, 1913 – valid
 | 
|   | 
Limia nigrofasciata Regan, 1913 – valid
 | 
|   | 
Limia ornata Regan, 1913 – valid – ornate limia, ornate limia
 | 
|   | 
Loricariichthys ucayalensis Regan, 1913 – valid
 | 
|   | 
Lycenchelys antarctica Regan, 1913 – valid
 | 
|   | 
Macrourus whistoni (Regan, 1913) – invalid
 | 
|   | 
Macrourus whitsoni (Regan, 1913) – valid – Whitson's grenadier
 | 
|   | 
Micropoecilia picta (Regan, 1913) – valid
 | 
|   | 
Myxine capensis Regan, 1913 – valid
 | 
|   | 
Myxine paucidens Regan, 1913 – valid
 | 
|   | 
Notothenia trigramma Regan, 1913 – valid
 | 
|   | 
Ophthalmolycus Regan, 1913 – valid
 | 
|   | 
Pagetopsis Regan, 1913 – valid
 | 
|   | 
Pamphorichthys Regan, 1913 – valid
 | 
|   | 
Patagonotothen ramsayi (Regan, 1913) – valid
 | 
|   | 
Patagonotothen wiltoni (Regan, 1913) – valid
 | 
|   | 
Phallostethus Regan, 1913 – valid
 | 
|   | 
Phallostethus dunckeri Regan, 1913 – valid
 | 
|   | 
Pimelodella eutaenia Regan, 1913 – valid
 | 
|   | 
Poecilia caudofasciata (Regan, 1913) – valid
 | 
|   | 
Poecilia nigrofasciata (Regan, 1913) – invalid – black-barred limia, humpback limia, black-barred limia, humpback limia
 | 
|   | 
Poeciliopsis Regan, 1913 – valid – desert topminnows
 | 
|   | 
Priapella Regan, 1913 – valid
 | 
|   | 
Priapichthys Regan, 1913 – valid
 | 
|   | 
Pseudobagrus emarginatus (Regan, 1913) – valid
 | 
|   | 
Pseudobagrus truncatus (Regan, 1913) – valid
 | 
|   | 
Pseudolabrus fuentesi (Regan, 1913) – valid
 | 
|   | 
Pseudomonacanthus paschalis Regan, 1913 – invalid
 | 
|   | 
Pseudomystus breviceps (Regan, 1913) – valid
 | 
|   | 
Pseudomystus rugosus (Regan, 1913) – valid
 | 
|   | 
Pseudomystus siamensis (Regan, 1913) – valid
 | 
|   | 
Pseudomystus vaillanti (Regan, 1913) – valid
 | 
|   | 
Pseudopoecilia Regan, 1913 – valid
 | 
|   | 
Synaphobranchus australis Regan, 1913 – valid
 | 
|   | 
Thamnaconus paschalis (Regan, 1913) – valid
 | 
|   | 
Trematomus loennbergii Regan, 1913 – valid
 | 
|   | 
Trichomycterus spilosoma (Regan, 1913) – valid
 | 
|   | 
Trichomycterus unicolor (Regan, 1913) – valid | 
        
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